Patients on the Ginkgo biloba extract suffered no more adverse effects than did the patients on placebo.
The extract of Ginkgo biloba contained 24% ginkgo-flavoneglycosides, which acts as free radical scavengers. These free radicals are believed to be the cause of cell damage in Alzheimer’s disease.
CONCLUSION: Ginkgo biloba 24% extract was given for a total of 120 mg. per day and was shown to be of moderate benefit to patients with Alzheimer’s disease and multi-infarction dementia. The standard dose of the 24% extract is 120 mg.